Train-pipe coupling.



No. 846,840. PATBNTED MAR. 12, 1907. J. E.. FORSYTH. TRAIN PIPE GOUPILING. APPLIOATIONFILED JULY 9. 1906. n

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No.84=6,840. PATENTED MAR. 12, 1907. J. E. FORSYTH. TRAIN PIPE COUPLING.

n APPLICATION FILED JULY 9. 1906. 2 SHEETS SHEETY2 @06222021 L/ase/U jnsyg,

I 3 5 internally threaded at 45 `spring b2 shown) which depends,fromthedraw-b'ar of UNI'IEI) STATES PATENT OEEIOE,

' JOSEPH roRsYTII, OF CHICAGO, ILLINOIS.

TRAIN-PIPE COUPL|NG.

s'peeieatioxi of Letters Patent.l Anuman and Iuiy 9. 1906.` serial No. 325,248.

Patented March 12, 1907.

- To all whom it may concern.-

Beit known that l, JOSEPH E. FoRsYTH, a citizen of the United States, residing at Chicago, in the county of Cook and -State of Illi- 5 nois, have invented a new and useful Improvement in Train-Pipe Coupling7 of which the iollowing'is a specification.

This invention relates particularly toautomatic train-pipe couplings-such, for in- Io, stance, as disclosed inmyPatent No. 692,511, dated February 4, 1902.

The primary object of the invention is to facilitate' the replacement of gaskets in' the coupling-heads in the event vvof injury thereto."

In the construction illustrated, A repre-'- 25v sents a coupling-head, and B means for supporting the coupling-head on the substructure of a car' The coupling-headhas aflat face a of oval outline and has a pair of diagonally opposite guide prongs a/,' aHording 3o shoulders a2, lying in a vertical central plane,vv

and shoulders a3, lying in a horizontalcentral plane, as is now well art. The head is e 'ui .face With a central ol understood in the'I ped on yits rear ysurow b oss a4, which is its-rear portion to receive a nut a5, a, with an enlargement a7 at lits 'inner end.

. The means for supporting and centering the coupling-head comprises a bolt b, having 'a 4o head b', received Within the enlarged opening c7, and a conical coiled spring bzfwithin Swhose'small outer-end is received'rthe shankl said nut hard-ng a bearing for of thenut a5, the spring, asshown. Inv practice the s supported on a. bx-acket (not j The coupling-head `'nas near its top a chamber c,

5o front face of the head.. Itfhas atfits center a chamber li';A withanorice'd' portion a 'chamber f, with an i ving at the rontjacesof the'he'ad. The -orI- 5 5 ices c d ffyare'ain vertical aline'ment'at the central plane,ofthecoupling-head.

having a central perforation -the plug d",t e ring `'sectionally-constructed u gasket f.

against the gasket. The

withan-.orice c 'opening 'at the opening at the t held in front aceof the'head, and ithas at its lowerorice fopen- Connected with the upperl portion of the coupling-head and communicating with the chamber c is an obliquely-set'hollovsT lug c2, which connects with the signal-pi ec3 of the train. Connected'with the c entra the head at one side of the boss a* liquely-set hollow lug d2, which communi- Oates with the chamber d and connects With- .the 'brake-pipe d3 of the-train.` Connected with thellower on the Opposite side thereof is an obliquelyset hollow lug f2, which communicates with 65 portion of the coupling-head4 the chamber f ofthe-head' and`is connected with the steam-pipe f3 of the train.- The pipes c3 c3 f3 are iexible metallicpipesof nown, construction, permittin mentof the vcouplin -head with the fixed portions o? chamber chas at its which receives the ket c, whose face surface a,y ofthe coupling-hea The gasket iscOnned in place by means of a plu c?, threaded'into an opening at the rear sidgeof the coupling-headiand which intersects the chamber c.' The front side a socket c,4v Hange c5 of agrubbe'r gasprojects beTOnd-.the front free moverelativon'to 'the train-pipes 'Theforwardly-projecting arms c ijwhich' bear ay ring c", serving to hold the gasket c in lace. Similarl the coupling-head has'a soc et d* at the e amber d, which receives the ange Pof a rubber gasket d6,`whose face projects y beyond the face of the coupling-head. The `gasket is confined in place by means of a plugl l confined between the plug and 'thergasket The plug d? screws into the rear side ofthe coupling-headfwithin the hol.- low bossfa. The boss a* is provided with lateral openin s d, which permit removal of The coupli lheadhas at its lower portion a socket f4,

n w ch receives the flange f5 of a The gasket'is coniined in place by means 'of a threaded plug f 7,-having forwardly-projecting arms f8, equipped with a ring f, whichbears gasket comprises a composition section f1, having a concave surface at'its front side, and a metallic section f1?, having a convex surface fitting with in said concave surface, the' section/f11 being place by a spring f 12, having shoulengagi the ring f 9. The section' 111 projectsin' front of the face a of the coupg-head, but is of vless diameter than the o riso thatthe gasket as' a Whole is Withice f', drawable from the rear ofthe .coupling-head.

d8, and the gasket da. l

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6o portion of y is an ob-y From the foregoing description it will be. understood that the improved construction provides for removal of any gasket and the substitution of a` new one without the necessity of uncoupling the. cars.

[t is understood, of course. that in practice cars are equipped at both ends with the improved couplingl and that when the cars are coupled together the train-pipes are automatically coupled in u manner now well understood in the art.

The foregoing detailed description has been given for cleariiess of understanding only, and no undue limitation is tu be under stood therefioiii.l

What I regard as new, and desire to secure b v Letters latent, is-v 1. In an automatic train-pipe coupling, the combination with a coupling-head hav ing a face adapted to be presented to a cornpanion coupling-head, of a pipe connected with said coupling-head, and a gasket connected with said head and removable from the rear of the head without disturbing the pipe, for the purpose set forth.

2. In an automatic train-pipe couplin.g,a coupling-head having a chamber with an orilice opening at the front face of the coupling head and a gasket-socket formed at said oritice, a gasket seated in said socket, a plug having threaded connection with the rear,

portion of the coupling-head, means between the plug and gasket for confining the gasket in its Socket, and a pipe independent ofsaid plug communicating,with said chamber.

3. In an automatic train-pipe coupling, the combination of a coupling-head having a chamber with an oriiice opening at the front face of the coupling-head, a gasket equipped with afiange bearing against an internal shoulder adjacent to the orifice, a plug having threaded connection with the couplinghead in the rear of said chamber, a ring bearing upon said gasket andinaintaned in position by s'aid plug, andan obliquely-Set perforate lug communicating with said chamber and serving as a pipe connection. for the purpose set forth.

4. In an autoiiiati(I train-pipe coupling, the combination of a coupling-head having a central chamber with an orifice opening at the front face of the coupling-head, a hollow boss in the rear of said chamber having a lateral opening, means connected with said boss for supporting the coupling-head, lan obliquely-set pipe communicating with said chamber, a plug having threaded connection' with the coupling-head in the rear of said y chamber and removable through said lateral opening, a gasket at said orifice, and gasket.- confining means between said plug and gasket.

'5. In an. -autoinatic train-pipe coupling,

. the combination of a coupling-head having a chamber with an orifice opening at the front face of the coupling-head and an internal shoulder adjacent to said oriiice, a plug conil nected with the coupling-head in the 'rearl of said chamber, a pipe communicating with said chamber, and a gasket comprising a section having a shoulder 'fitting against said first-named shoulder and a section having a bearing on said -iirst-nanied section and having a face projecting beyond the front face of the coupling-head, said second-named section being of less diameter than said orifice.

6. In an automatic train-pipe coupling, the combination of a coupling-head equipped with forivardlyprojecting guide-prongs and a flat front face between said prongs, a series of chan'ibers in said coupling-head with verticall \falined orifices opening at the front face of the coupling-head in a central vertical plane, obliquelizset pipes connected with said coupling-head and communicating with said chambers, a support connected with the central portion of the coupling-head at the rear side thereof, gaskets at said orifices having retaining-shoulders, and plugs connected with the rear portion of the coupling-head and confining said gaskets.

7. rIhe combination of a coupling-head having forwardly-projecting guide-prongsI and provided with a central chamber having an orifice opening at the front face of the coupling-head, a hollow boss projecting from the rear face of the coupling-head at the central portion thereof and having a lateral opening, a nut having threaded connection with the rear end of said boss, a bolt Supporting said nut, an obliquelv-set pipe coinmunieating with said chamber, a gasket :u said orifice, a ring bearing upon said gasket.

and a plug insertible through said hollow boss and having threaded connection with the coupling-head in the rear of said ring. tor the purpose set forth.

A, U. TiioninN, J. H'. LANDns.

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